there are functions in the API Docs that can change the screen size or change to full screen, at least that how I understood it. To change to the exact screen size when peope may have different screens I'm not sure, but if you can figure how to fetch the screen, not window, resolution that may do it.

those would be the ones accessible through iGraphics2D interface,namely: iGraphics2D::SetFullscreen() and iGraphics2D::ResizeCanvas().It could be that you need to restart the application for those change to be really effective. In that case, you'll want to update/set one or more of these configuration key-value pairs in your application configuration file:Video.ScreenWidth = 800Video.ScreenHeight = 600Video.FullScreen = noEasy application restart is a feature of csApplicationFramework; to change config files, you can/should use csConfigAccess, problably like it's used in CS/apps/tutorial/simpvs/simpvs.cpp